]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
pwm: spear: Don't modify HW state in .remove callback
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Wed, 28 Apr 2021 09:05:24 +0000 (11:05 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 20 Jul 2021 14:02:13 +0000 (16:02 +0200)
[ Upstream commit b601a18f12383001e7a8da238de7ca1559ebc450 ]

A consumer is expected to disable a PWM before calling pwm_put(). And if
they didn't there is hopefully a good reason (or the consumer needs
fixing). Also if disabling an enabled PWM was the right thing to do,
this should better be done in the framework instead of in each low level
driver.

So drop the hardware modification from the .remove() callback.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/pwm/pwm-spear.c

index f63b54aae1b48e2634e07692a7884c64771a709e..7467e03d2fb53384a2aaf72c9ee5f371e1c15a9f 100644 (file)
@@ -229,10 +229,6 @@ static int spear_pwm_probe(struct platform_device *pdev)
 static int spear_pwm_remove(struct platform_device *pdev)
 {
        struct spear_pwm_chip *pc = platform_get_drvdata(pdev);
-       int i;
-
-       for (i = 0; i < NUM_PWM; i++)
-               pwm_disable(&pc->chip.pwms[i]);
 
        /* clk was prepared in probe, hence unprepare it here */
        clk_unprepare(pc->clk);